1445645827 has 2 divisors, whose sum is σ = 1445645828. Its totient is φ = 1445645826.

The previous prime is 1445645821. The next prime is 1445645843. The reversal of 1445645827 is 7285465441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1445645827 - 2³ = 1445645819 is a prime.

It is not a weakly prime, because it can be changed into another prime (1445645821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722822913 + 722822914.

It is an arithmetic number, because the mean of its divisors is an integer number (722822914).

Almost surely, 2^1445645827 is an apocalyptic number.

1445645827 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445645827 is an equidigital number, since it uses as much as digits as its factorization.

1445645827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1075200, while the sum is 46.

The square root of 1445645827 is about 38021.6494513323. The cubic root of 1445645827 is about 1130.7171230509.

The spelling of 1445645827 in words is "one billion, four hundred forty-five million, six hundred forty-five thousand, eight hundred twenty-seven".